Sentences with phrase «heat at the earth surface»

One could say too much extra heat at the earth surface will greatly excite the hurricane safety valve (maybe too much, too often) but not enough heat will be jettisoned to the troposhere and will remain to melt glaciers, warm air currents, disrupt preciptation patterns and, in general, muck up the system

Not exact matches

«It gives us some insight into the connection between the slow circulation of near - solid rock in Earth's mantle caused by convection currents carrying heat upwards from the planet's interior, and observed active plate tectonics at the surface.

While it is still possible that other factors, such as heat storage in other oceans or an increase in aerosols, have led to cooling at the Earth's surface, this research is yet another piece of evidence that strongly points to the Pacific Ocean as the reason behind a slowdown in warming.

The reason for climate scientists» pessimism is this: Carbon dioxide persists in the atmosphere for centuries, so today's emissions would trap heat at the Earth's surface well into the future.

The planet, located at least 1,000 light - years from Earth in the constellation Lyra, is too cool for heat from the planet's surface to explain the vivid patch.

Scientists seeking to understand the forces at work beneath the surface of Earth have used seismic waves to detect previously unknown «fingers» of heat, some of them thousands of miles long, in Earth's upper mantle.

In this picture, the engine behind Earth's interior processes is not heat from the core but cooling at the planet's surface.

The lander will deploy a parachute at a distance of 7.8 miles (12.6 kilometers) from the surface, then jettison its heat shield, flip over to face its thrusters toward the planet and finally fire them in short, coordinated bursts, touching down at 4:53 P.M. Pacific time (taking into account the 15 - minute communication lag between Mars and Earth).

In the deep gold mines of South Africa, and under the sea, at hydrothermal vents where breaks in the fissure of Earth's surface that release geothermally heated waters — hydrogen - rich fluids host complex microbial communities that are nurtured by the chemicals dissolved in the fluids.

On the other hand, if the ice shell is sufficiently thick, the less intense interior heat can be transferred to warmer ice at the bottom of the shell, with additional heat generated by tidal flexing of the warmer ice which can slowly rise and flow as do glaciers do on Earth; this slow but steady motion may also disrupt the extremely cold, brittle ice at the surface to produce the chaos regions.

The surface of the Earth radiates as a blackbody at its temperature which is continually changing because it is being heated by the sun, or it is cooling during the night.

Most of the heat being trapped at the Earth's surface by human greenhouse gas emissions is absorbed by the oceans.

Like carbon dioxide, methane is a greenhouse gas that traps heat at the Earth's surface.

The concentration of radioactivity measured down Germany's deepest hole (5.7 miles) would account for all the heat flowing out at the earth's surface if that concentration continued down to a depth of only 18.8 miles and if the crust were 4 billion years old.47

Volodin, E.M., 2004: Relation between the global - warming parameter and the heat balance on the Earth's surface at increased contents of carbon dioxide.

They calculate changes in heat flows, moisture changes, and other factors in three - dimensional grid boxes — and do so in Earth's atmosphere, at its surface, and beneath the surface of the oceans — with grid boxes interacting with their neighbors.

Since we know that the earth's surface is significantly warmed by geothermal heat, that geothermal heat is variable, that truly titanic forces are at work in the earth's core changing its structure and alignment, and that geothermal heat flux has a much greater influence on surface temperatures than variations in carbon dioxide can possibly have, it makes sense to include its effects in a compendium of global warming discussion parameters.

# 29 — the phenomenon of greenhouse gases retaining heat at the surface of the earth operates on decadal scales, and the orbital variations (Milankovitch cycles) which cause the waxing and waning of the ice ages operate on millennial scales, and both are fundamental physical processes, and are not elucidated by computer models.

After all, if average surface temperature is 15 C, wouldn't you expect land and ocean below the surface to equilibrate at roughly that temperature (with a slightly rising gradient to account for the flow of Earth's internal heat)?

First, global mean surface temperature depends on the quantity of heat stored at the surface of the earth (earth, lower atmosphere, and the mixed layer of the oceans).

Even if ocean surface temperatures fall as in (3), heat continues to accumulate in the earth system until the amount of outgoing radiation at the top of atmosphere equals the amount of incoming radiation there.

... warming in the Arctic is concentrated close to the Earth's surface, slowing the rate at which heat is lost to space from the top of the atmosphere.

Temperature tends to respond so that, depending on optical properties, LW emission will tend to reduce the vertical differential heating by cooling warmer parts more than cooler parts (for the surface and atmosphere); also (not significant within the atmosphere and ocean in general, but significant at the interface betwen the surface and the air, and also significant (in part due to the small heat fluxes involved, viscosity in the crust and somewhat in the mantle (where there are thick boundary layers with superadiabatic lapse rates) and thermal conductivity of the core) in parts of the Earth's interior) temperature changes will cause conduction / diffusion of heat that partly balances the differential heating.

Actually, though, most of the OLR originates from below the tropopause (can get up around 18 km in the tropics, generally lower)-- with a majority of solar radiation absorbed at the surface, a crude approximation can be made that the area emitting to space is less than 2 * (20/6371) * 100 % ~ = 0.628 % more than the area heated by the sun, so the OLR per unit area should be well within about 0.6 % of the value calculated without the Earth's curvature (I'm guessing it would actually be closer to if not less than 0.3 % different).

If the sun suddenly shut off, the earth would cool down quickly, and get so cold that the greenhouse gases (most, if not all; certainly water vapor and CO2 - methane freezes at 91 degrees k or -182 deg C) that slow the loss of heat to space would condense out, making the equilibrium surface temperature even colder.

I have read a bit about greenhouse gases, reflection of heat from Earth's surface, etc. but can't imagine man having any real significant ability to change Earth's temperature at all.

Left alone, the Sun will cool, let alone the Earth, which continues to lose heat at a surface rate amounting to around one or two millionths of a degree per annum.

In fact if one looks at the heat balance of the oceans down to 2000M, which can not be driven to first order by surface related ocean cycles, we come to the conclusion that the earth is warming due to radiative imbalance.

Sorry, Feynman never experimentally demonstrated that thermal energy / heat was transferred from the colder atmosphere to the warmer surface of the earth, or experimentally demonstrated that two objects at the same temperature transferred thermal energy / heat to the other object.

psagar @ 365, the IR flux from the top of the atmosphere is a function of Global Mean Surface Temperature (GMST), not of how much heat is stored at the Earth's sSurface Temperature (GMST), not of how much heat is stored at the Earth's surfacesurface.

Anthropogenic GHG warming is about the Earth's energy balance, and thus, looking at an average global near - surface temperature, or the total ocean heat content can tell us something useful about that energy balance.

Perhaps the sunlight could warm something as warm 100 C or higher [as said earth surface at Venus distance would be] and as said in dry conditions one expect the surface heat the air to sauna - like condition.

John Carter August 8, 2014 at 12:58 am chooses to state his position on the greenhouse effect in the following 134 word sentence: «But given the [1] basics of the greenhouse effect, the fact that with just a very small percentage of greenhouse gas molecules in the air this effect keeps the earth about 55 - 60 degrees warmer than it would otherwise be, and the fact that through easily recognizable if [2] inadvertent growing patterns we have at this point probably at least [3] doubled the total collective amount in heat absorption and re-radiation capacity of long lived atmospheric greenhouse gases (nearly doubling total that of the [4] leading one, carbon dioxide, in the modern era), to [5] levels not collectively seen on earth in several million years — levels that well predated the present ice age and extensive earth surface ice conditions — it goes [6] against basic physics and basic geologic science to not be «predisposed» to the idea that this would ultimately impact climate.»

gbaikie December 16, 2012 at 8:46 pm said:» «- Without sunlight adding energy which converted into heat, the surface Earth would be very cold»

Water takes longer to heat up and cool down than does the air or land, so ocean warming is considered to be a better indicator of global warming than measurements of global atmospheric temperatures at the Earth's surface.

That's only one part of the problem of the heat transfer at the Earth's surface, where the non-radiative exchange is dominant (evaporation + convection).

Such temperature changes at the Earth's solid surface then propagate into the subsurface by heat conduction through the soil and rock.»

The band of TSI in which the switch from warming to cooling and back again is a variation of less than 4 Watts per square metre of heat arriving at the Earth's surface.

We don't have visible light saunas, we have thermal infrared saunas; we don't have visible light heaters to heat our homes, we have thermal infrared heaters heating matter directly, just as the real thermal infrared direct from the Sun heats the matter on the Earth's surface directly; heats water of the oceans, heats the land, heats it so intensely at the equator that it gives us our HUGE and dramatic WINDS flowing from the equator to the poles and back again.

At night, Earth's surface cools, releasing the heat back into the air.

Alec M.: I am prepared to repeat this master class in the real heat transfer at the Earth's surface on as regular a basis as needed to correct the problem of people having been taught incorrect radiative physics!

The mean of the second period is 0.47 C, which while it sounds small represents so much additional energy at the surface of the Earth and such a higher rate of accumulation vs. heat loss on the cubed (or fourth power) relationships involved as to make the two periods utterly incomparable.

Since Herschel's day, and Tyndall — he had a go at measuring the difference between light and heat, we know that visible light and the shortwaves either side which AGWSF claims «directly heat the Earth's surface matter» are not hot and don't have the power to heat matter which thermal infrared, simply called heat, does.

More greenhouse gases means more heat builds up at the Earth's surface.

Kevin Kilty says: August 5, 2010 at 5:52 pm Paul Birch says:... Note that within Earth's troposphere, the gross molecular flow of heat energy through any surface is of order 100MW / m2 (heat content times molecular speed).

The researchers had to estimate such variables as the chemical composition of the atmosphere, the amount of sunlight reflected by Earth's surface back into the atmosphere, and the movement of heat and salinity in the oceans at a time when all the continents were consolidated into the giant land mass known as Pangaea.

Many of the mechanisms are like that — the tides, the direct inductive heating, the heating caused by the days influx of falling meteorites — which incidentally is far greater than the rate of heat loss through outgassing, as meteoric dust and matter infalls at an average rate of at least millimeters per decade, from my own direct measurements — they have «impressively» large amounts of annual energy associated with them, right up to where you divide by the surface area of the earth and the number of seconds in a year.

Greenhouse gases slow down the rate of heat - loss from the surface of the Earth, like a blanket that slows down the rate at which your body loses heat.

The resulting reduction in radiative energy at Earth's surface may have attenuated evaporation and its energy equivalent, the latent heat flux (LH), leading to a slowdown of the water cycle.

and all working together to form a crude electric motor that deflects charged particles from the sun, which also deflect charged particles from space — while also pulling on the molten core to divert its heat to different parts of the Earth's surface at different rates... while other rocks orbiting the sun, also affect the Earth's axial tilt, particularly Jupiter, thereby changing temperature - extremes.